Messages - max rose

I am new so I am not sure if this is the right place to put this. Also I have tried to make sure these questions haven't been addressed before, but if I am wrong please forgive me for making a redundant post.

Crest says the thin man implanted memories in Surprisa. Despite this, Melter seemed intrigued by Surprisa's change. Also, Q'dlta thought to herself that she could banish the microbe spell at will. Why didn't Q'dlta banish the spell when she learned it had rebounded to the conclave?